ivan

No problem, DaWei, I understand you. I was pretty convinced that it was a good information but I will do some more research about that...

bl00dninja

how can currency and integer represent the same thing when integer deals purely with whole numbers and currency deals with floating point numbers with a 1/100th (decimal) point of accuracy? one has complete numbers, one has complete numbers + an incomplete part. basically, stay away from the crappy currency type unless all your users will only run your app, and nothing else. floating point numbers require a lot more memory and you can represent these numbers in C using "printf"...but where do the parts of pennies go? this is the stuff of "office space" and "superman 3" lore. no, the binary representation of decimal floating point numbers is stupid-complicated. and just in case you missed the important character in this case, here it is, a few hundred times.......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
uhh...dealing with currency? maybe i'm mistaken, maybe it's specifically designed for fibonacci numbers??? currency data type...dealing with currency? currency is MONEY...which has a decimal precision of 1/100 in america. maybe the indians know something we don't, which is why i have "apu" trying to explain fatal errors to me.

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Rory

Basically I believe a currency is your regular integer, (pure binary number) but the value is understood to be shifted down x places (divided by 10^x at the end). The reason its more precise than a double is that a double is stored as a binary float in memory, akin to standard form (value + placecount or mantissa + exponent).

DaWei

The purpose of a floating point number is to provide greater range at less precision in the SAME amount of memory. One can express a larger number by writing 100E100 than one can by writing 1000000. However, one can't express as many individual numbers.

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Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers